The basic formula is watts = volts * amps.
It is the watts which does the work. You can see by the formula that it
takes twice as many amps at 110V as it does at 220V to do the same heating.
If the watts are the same, there will be no difference.
That same formula should point out that using 110V will require a wire with
twice the capacity (bigger) to carry the same load at 220V.
Capn Wil
It is a common misconception that "If the watts are the same, there will be no
difference." Thereis a second expression Power = I x I x R. This means that
power losses are a function of the current squared. Hence we transmit power at
100,000 volts and have enormous power losses when we run a 30' line to a winch
at 200 amps. Since the typical dryer runs at 5800 watts, it is much better to
run it at 240v, which most generators capable of 6kw will be able to supply.
Good luck on the SPADE test, I'll not even think of buying one until its has
your imprimatur.
Peter Denton
Wil Andrews wrote:
>
>
> The basic formula is watts = volts * amps.
>
> It is the watts which does the work. You can see by the formula that it
> takes twice as many amps at 110V as it does at 220V to do the same heating.
> If the watts are the same, there will be no difference.
>
> That same formula should point out that using 110V will require a wire with
> twice the capacity (bigger) to carry the same load at 220V.
>
>
Capn Wil
It is a common misconception that "If the watts are the same, there will be no
difference." Thereis a second expression Power = I x I x R. This means that
power losses are a function of the current squared. Hence we transmit power at
100,000 volts and have enormous power losses when we run a 30' line to a winch
at 200 amps. Since the typical dryer runs at 5800 watts, it is much better to
run it at 240v, which most generators capable of 6kw will be able to supply.
Good luck on the SPADE test, I'll not even think of buying one until its has
your imprimatur.
Peter Denton
>
